v12 Price Layer conversion issue

Hello -

We've converted our Test environment to v12 and I found a minor issue which I think I have fix for but wanted to run it by folks smarter than myself before doing it:  v12 creates it's price layers via designations on your price maps.  However, we have two fees - each a set amount and different from each other - embedded in our ticket prices with the same designation (since it's never really served a serious purpose before).  These are then converting into v12 as "Fee Layer 1" and "Fee Layer 2".

However, depending on how the price type was built, sometimes the fee 1 price map comes first (for, say $1) and sometimes the fee 2 price map comes first (say $2).  This means that the fee layers in v12 are not consistent and if I rename the layers things go a bit sideways.  Fee 1 (for example) should always be $1, but in v12 pricing for past shows sometimes the first fee layer is $1 (correct) and sometimes it's $2 (the other fee price map).

I was thinking if I create two new designations and recode all the fee price maps via SQL to the new designations they would convert more cleanly.  However, I'm unsure of any unforeseen repercussions: Can I just run a small update script on T_PMAP to recode the fees to the new designations without hurting anything in, say, T_TRANSACTION or any other critical table?

Any advice is helpful.  Thanks all!